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1.
S Afr J Surg ; 52(3): 82-5, 2014 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-25215954

RESUMO

Introduction. Transrectal biopsy in suspected adenocarcinoma of the prostate (ACP) may cause significant morbidity and even mortality. A strong association between serum prostate-specific antigen (PSA) and tumour burden exists. If biopsy can be avoided in advanced disease, much morbidity and cost may be saved.Objective. To evaluate the reliability of using PSA and clinical features to establish a non-histological diagnosis of ACP.Methods. Androgen deprivation therapy (ADT) was used in 825 (56.2%) of 1 467 men with ACP. The diagnosis of ACP was made histologically in 607 patients (73.6%) and clinically alone in 218 (26.4%), based on a serum PSA level of >60 ng/ml, and/or clinical evidence of a T3 - T4 tumour on digital rectal examination, and/or imaging evidence of metastases. We compared two randomly selected groups treated with bilateral orchidectomy (BO) based on a clinical-only (n=90) v. histological (n=96) diagnosis of ACP.Results. There was no significant difference between the groups with regard to mean follow-up (26.1 v. 26.8 months), documented PSA relapse (70% v. 67.7%), and patients alive at last follow-up (91.1% v. 95.8%). ZAR1 068 200 (US$1 = ZAR8) was saved by treating men with advanced ACP on the basis of a clinical (non-histological) diagnosis only, and a total of ZAR24 321 000 was saved by using BO instead of luteinising hormone-releasing hormone agonists as ADT.Conclusion. A reliable clinical (non-histological) diagnosis of advanced ACP can be made based on serum PSA and clinical features. This avoids the discomfort and potentially serious complications of biopsy and saves cost.

2.
BJU Int ; 109(8): 1194-7, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21851551

RESUMO

OBJECTIVE: To compare the clinical features of patients having urinary retention and benign prostatic hyperplasia (BPH) with those having adenocarcinoma of the prostate (ACP) and to evaluate the significance of histological prostatitis. PATIENTS AND METHODS: The clinical data and histopathology reports of patients with retention admitted to Tygerberg Hospital between September 1998 and June 2007 were evaluated. Statistical analysis was performed with Student's t-test, Mann-Whitney test and Fisher's exact test where appropriate and P < 0.05 was considered to indicate statistical significance. RESULTS: Prostatic histology was available in 405 patients, 204 with BPH and 201 with ACP. Comparing those with BPH and those with ACP showed statistically significant differences in mean age (69.5 vs 71.9 years), serum prostate-specific antigen (PSA) level (18.6 vs 899.5 ng/mL) and histological prostatitis (48 vs 25%) but not duration of catheterization, prostate volume or urinary tract infection (UTI). Comparing those with BPH only and those with BPH plus prostatitis showed significant differences in mean age (71.9 vs 67.1 year) and PSA level (14.6 vs 22.8 ng/mL) but not prostate volume, UTI or duration of catheterization. Comparing those with ACP only and those with ACP plus prostatitis showed significant differences in stage T4 cancer (68.1 vs 35.4%) and PSA level (1123.4 vs 232.4 ng/mL) but not age, prostate volume, UTI or duration of catheterization. CONCLUSIONS: Histological prostatitis was almost twice as common in patients with urinary retention associated with underlying BPH than in patients with ACP, but there was no significant difference in the duration of catheterization, prostatic volume or presence of UTI, suggesting that histological prostatitis more often contributes to the development of retention in patients with underlying BPH than in those with ACP. In patients with BPH, histological prostatitis was associated with urinary retention at a significantly younger age and with higher serum PSA levels. In patients with ACP, histological prostatitis was associated with urinary retention at an earlier stage of cancer.


Assuntos
Adenocarcinoma/complicações , Hiperplasia Prostática/complicações , Neoplasias da Próstata/complicações , Prostatite/patologia , Retenção Urinária/patologia , Adenocarcinoma/sangue , Adenocarcinoma/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Diagnóstico Diferencial , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Antígeno Prostático Específico/sangue , Hiperplasia Prostática/sangue , Hiperplasia Prostática/patologia , Neoplasias da Próstata/sangue , Neoplasias da Próstata/patologia , Prostatite/sangue , Prostatite/complicações , Estudos Retrospectivos , Índice de Gravidade de Doença , Retenção Urinária/sangue , Retenção Urinária/etiologia
3.
S Afr J Surg ; 50(4): 127-30, 2012 Nov 12.
Artigo em Inglês | MEDLINE | ID: mdl-23217554

RESUMO

OBJECTIVE: To determine the prevalence of prostatitis on histopathological evaluation of prostatic tissue in men without urinary retention. DESIGN, SETTING AND SUBJECTS: The clinical data and histopathology reports of men seen from January 1999 through March 2009 at our institution were analysed using Student's t-test, the Mann-Whitney test and Fisher's exact test where appropriate. Values were expressed as means, medians and ranges (p<0.05 accepted as statistically significant). OUTCOME MEASURES: Data collected included patient age, duration of lower urinary tract symptoms and hospitalisation, findings on digital rectal examination, prostate volume, haemoglobin concentration, serum creatinine and prostate-specific antigen (PSA) levels, and histological findings. RESULTS: Prostatic tissue of 385 men without urinary retention at presentation was obtained via biopsy (48.3% of cases), transurethral prostatectomy (62.9%), retropubic prostatectomy (6.8%) or radical prostatectomy (28.3%). On histological examination, benign prostatic hyperplasia (BPH) was found to be present in 213 patients (55.3%) and adenocarcinoma of the prostate (ACP) in 172 (44.7%). Histological prostatitis was present in 130 patients (61.0%) with BPH and 51 (29.7%) with ACP (p<0.001). A previous study of 405 men presenting with urinary retention at our institution showed histological prostatitis in 98/204 (48.0%) with BPH and in 51/201 (25.4%) with ACP. The group of men with BPH alone had a significantly lower mean serum PSA at presentation (4.5 ng/ml, range 0.3 - 20.8 ng/ml) compared with the group with BPH and prostatitis (11.2 ng/ml, range 0.2 - 145 ng/ml, p=0.011). The mean PSA level at presentation did not differ significantly between the group with ACP only (40.9 ng/ml, range 0 - 255 ng/ml) and the group with ACP plus prostatitis (1 672 ng/ml, range 0.3 - 38 169 ng/ml, p=0.076). CONCLUSIONS: Among men presenting without urinary retention, histological prostatitis was significantly more prevalent in those with BPH than in those with ACP (61% v. 30%), similar to the previous study of men presenting with retention at our institution, in which histological prostatitis was significantly more prevalent in BPH than in ACP (48% v. 25%). This finding suggests that histological prostatitis is not significantly associated with the causation of ACP or urinary retention. Serum PSA at presentation was significantly higher in the group with BPH plus prostatitis compared with BPH alone, but not in the group with ACP plus prostatitis compared with ACP alone.


Assuntos
Adenocarcinoma/complicações , Hiperplasia Prostática/complicações , Neoplasias da Próstata/complicações , Prostatite/complicações , Adenocarcinoma/sangue , Adenocarcinoma/patologia , Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Antígeno Prostático Específico/sangue , Hiperplasia Prostática/sangue , Hiperplasia Prostática/patologia , Neoplasias da Próstata/sangue , Neoplasias da Próstata/patologia , Prostatite/sangue , Prostatite/patologia , Retenção Urinária
4.
BJU Int ; 108(2): 204-8, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21087452

RESUMO

OBJECTIVE: • To compare prostate cancer detection rates using the Vienna nomogram versus an 8-core prostate biopsy protocol. To compare the complication rates of transrectal prostate biopsy in the two groups. PATIENTS AND METHODS: • In a prospective randomized trial, men with a serum PSA ≥ 2.5 ng/ml were stratified according to serum PSA (I = PSA 2.5-10; II = PSA 10.1-30; III = PSA 30.1-50 ng/mL) and were then randomized to group A (number of cores determined according to the Vienna nomogram) or group B (8-core prostate biopsy). • Statistical analysis was performed using Student's t-test for parametric data, Mann-Whitney test for nonparametric data and Fisher's exact test for contingency tables. A two-tailed p-value <0.05 was accepted as statistically significant. RESULTS: • In the period July 2006 to July 2009, 303 patients were randomized to group A (n = 152) or group B (n = 151). There were no significant differences in serum PSA, prostate volume, PSA density or post-biopsy complications between the groups. • The cancer detection rate was lower in group A than in group B for the whole study cohort (35.5% vs 38.4%), for those with PSA < 10 ng/ml (28.1% vs 33%) and for those with prostate volume >50 ml (22% vs 25.8%). These differences were not statistically significant (NSS). CONCLUSION: • These findings suggest that there is no significant advantage in using the Vienna nomogram to determine the number of prostate biopsy cores to be taken, compared to an 8-core biopsy protocol.


Assuntos
Biópsia por Agulha/métodos , Nomogramas , Próstata/patologia , Neoplasias da Próstata/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos Clínicos , Métodos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/sangue
5.
Nat Clin Pract Urol ; 6(1): 32-43, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19132004

RESUMO

In recent years the nature of HIV infection has been dramatically transformed from an invariably fatal disease to a chronic disorder with a relatively benign course. Disease progression from HIV to AIDS and HIV-related mortality can be reduced effectively by several years of treatment with highly active antiretroviral therapy (HAART). For patients who do not have access to HAART, HIV infection continues to be a lethal disorder characterized by opportunistic infection with uncommon organisms (e.g. mycobacteria, fungi, parasites and viruses), as well as lethal malignancies such as Kaposi sarcoma, non-Hodgkin lymphoma and squamous cell carcinoma of the penis or cervix. In patients receiving HAART, urologic complications are likely to be caused by adverse effects of antiretroviral medication (e.g. indinavir urolithiasis) or disorders associated with aging, such as benign prostatic hyperplasia and prostate cancer. Prospective clinical trials have shown that adult male circumcision can reduce the rate of female to male HIV transmission by more than 50%; however, the development of preventive or curative modalities with 100% efficacy remains elusive.


Assuntos
Infecções por HIV/complicações , Doenças Urológicas/etiologia , Síndrome da Imunodeficiência Adquirida/complicações , Feminino , Humanos , Masculino
6.
Can J Urol ; 16(1): 4498-501; discussion 4501, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19222890

RESUMO

Penile cancer normally spreads in a predictable manner to the regional lymph nodes: first inguinal and then the pelvic nodes. We report a case where the patient presented synchronously with secondary skin metastases and primary high grade penile squamous carcinoma. In addition the patient also had pulmonary metastases, loco regional spread to the groin nodes, liver metastases and tumour erosion of a right sided rib. The skin metastases appeared nodular, were firm in consistency and appeared intradermal. Skin metastases have been described for a number of solid malignancies - the clinician must have an index of suspicion to relate a less obvious primary lesion with secondary skin lesions. The patient died before chemotherapy could be administered.


Assuntos
Carcinoma de Células Escamosas/secundário , Neoplasias Penianas/patologia , Neoplasias Cutâneas/secundário , Humanos , Masculino , Pessoa de Meia-Idade
7.
Clin Drug Investig ; 29(12): 757-65, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19888782

RESUMO

BACKGROUND AND OBJECTIVES: Triptorelin 6-month formulation was developed to offer greater convenience to both patients and physicians by reducing the injection frequency. The efficacy, pharmacokinetics and safety of a new 6-month formulation of triptorelin were investigated over 12 months (48 weeks). The primary objective was to evaluate the formulation in achieving castrate serum testosterone levels (< or = 1.735 nmol/L or < or = 50 ng/dL) on day 29 and in maintaining castration at months 2-12. Absence of luteinizing hormone (LH) stimulation and change in prostate-specific antigen (PSA) level were also assessed. METHODS: An open-label, non-comparative, phase III study in 120 patients with advanced prostate cancer was conducted from July 2006 to August 2007 in private and public institutions in South Africa. Each patient received two consecutive intramuscular injections of triptorelin embonate (pamoate) 22.5 mg at an interval of 24 weeks. In all patients, testosterone (primary outcome measurement) was measured at baseline and then every 4 weeks; LH was measured before and 2 hours after the two injections. PSA was measured on day 1 and at weeks 12, 24, 36 and 48. Adverse events were recorded at each visit. RESULTS: In the intent-to-treat population, 97.5% (95% CI 92.9, 99.5) of patients achieved castrate serum testosterone levels by day 29, and 93.0% (95% CI 86.8, 97.0) maintained castration at months 2-12. After the second injection, 98.3% of patients showed absence of LH stimulation. The most frequent drug-related adverse events were hot flushes (71.7% of patients). No patient withdrew from the study as a result of an adverse event. CONCLUSIONS: The triptorelin 6-month formulation was well tolerated and was able to achieve and maintain castration for the treatment of locally advanced and metastatic prostate cancer. By reducing the frequency of required injections, this new formulation offers a more convenient treatment regimen. (Clinical Trial Registration,NCT00751790 at www.clinicaltrials.gov).


Assuntos
Antineoplásicos Hormonais/administração & dosagem , Neoplasias da Próstata/tratamento farmacológico , Testosterona/sangue , Pamoato de Triptorrelina/administração & dosagem , Idoso , Antineoplásicos Hormonais/efeitos adversos , Antineoplásicos Hormonais/farmacocinética , Preparações de Ação Retardada , Fogachos/induzido quimicamente , Humanos , Injeções Intramusculares , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/patologia , África do Sul , Pamoato de Triptorrelina/efeitos adversos , Pamoato de Triptorrelina/farmacocinética
8.
Carcinogenesis ; 29(12): 2347-50, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18974063

RESUMO

Cyclooxygenase-2 (COX-2) converts arachidonic acid to prostaglandins, which are important mediators of cell proliferation and inflammation. Evidence indicates that COX-2 plays a role in carcinogenesis and that it is over-expressed in prostate tumours. We investigated the role of COX-2 variants in prostate cancer in a case-control study of South African Coloured men, consisting of 151 cases and 134 controls. The genotype frequencies of four single-nucleotide polymorphisms (SNPs) in the COX-2 promoter were initially determined in 50 control subjects. One SNP, rs20417 (-899G>C), was monomorphic and excluded from further investigation. Three SNPs, rs3918304 (-1285A>G), rs20415 (-1265C>T) and rs5270 (-297C>G), were genotyped in all the case patients and control subjects. The -1285 G-allele and -1265 T-allele were associated with increased risk of prostate cancer [odds ratio (OR) = 3.53; confidence interval (CI) = 2.14-5.90; P < 0.0001 and OR = 3.01; CI = 1.82-5.02; P < 0.0001] after adjusting for age. Haplotype GTC conferred increased risk of prostate cancer in South African Coloured men (OR = 3.54 versus ACC; CI = 2.12-5.92; P < 0.0001). These findings in conjunction with findings in other populations of African descent might suggest a common causal variant for prostate cancer in COX-2, or a variant in a nearby gene.


Assuntos
Ciclo-Oxigenase 2/genética , Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Regiões Promotoras Genéticas/genética , Neoplasias da Próstata/genética , Idoso , Idoso de 80 Anos ou mais , População Negra/genética , Estudos de Casos e Controles , Genótipo , Haplótipos , Humanos , Desequilíbrio de Ligação , Masculino , Pessoa de Meia-Idade , Fatores de Risco , África do Sul
9.
BJU Int ; 102(3): 305-9, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18410439

RESUMO

OBJECTIVE: To evaluate dynamic sentinel lymph node biopsy (DSLNB) in patients with squamous cell carcinoma (SCC) of the penis and palpable inguinal lymph nodes, using inguinal lymph node dissection (ILND) as the reference standard to assess the reliability of DSLNB, as using radioscintigraphy and colloidal blue-dye injection to locate the SLN was reported to be a useful technique to avoid ILND in men with SCC of the penis and clinically impalpable nodes. PATIENTS AND METHODS: The study included 23 consecutive men with SCC of the penis and clinically palpable inguinal nodes treated between August 1999 and July 2006. On the day before surgery the patient had the SLN located by subcutaneous injection of 60 MBq (99m)Tc-nanocolloid 2 cm proximal to the penile tumour. The following day the patient was taken to the operating room for DSLNB, resection of the penile tumour and simultaneous ILND, if considered indicated (G2-3 and/or T3-4 primary tumour). During surgery 2 mL of colloidal blue dye was injected in the same area as the previous (99m)Tc-nanocolloid injection. The SLNs were located during surgery using a gamma-probe and visualization of blue dye in the node(s), which were then surgically removed. After partial or total penectomy, selected patients had ILND through a 10-cm subinguinal incision. The primary tumour, SLNs and ILND specimens were assessed histopathologically, using haematoxylin and eosin staining only. RESULTS: Biopsy of the primary tumour showed SCC grade 1 in six, grade 2 in 13 and grade 3 in two patients. The clinical T stage was T1 in two, T2 in seven, T3 in 13 and T4 in one. There were clinically palpable inguinal lymph nodes bilaterally in 19 and unilaterally in four men. Scintigraphy before surgery showed inguinal nodes bilaterally in 12 and unilaterally in eight patients, while there were no nodes in three. Surgery comprised partial penectomy in 14, radical penectomy in eight and circumcision alone in one patient. Simultaneous bilateral ILND was done in 15 patients. Inguinal node metastases were present in four of the 23 (17%) patients; the SLN was falsely negative in three (13%), one of whom had a small focus of cancer in the SLN that was missed on initial histopathological examination, and in two the dynamically located SLN contained no cancer, but node metastases were found in the ILND specimen. CONCLUSION: The relatively high false-negative rate of DSLNB indicates that it is not sufficiently reliable to replace complete ILND in men with a high suspicion of nodal metastases, i.e. a high-grade or high-stage primary lesion with clinically palpable inguinal nodes.


Assuntos
Carcinoma de Células Escamosas/patologia , Linfonodos/patologia , Neoplasias Penianas/patologia , Biópsia de Linfonodo Sentinela/normas , Adulto , Idoso , Idoso de 80 Anos ou mais , Reações Falso-Negativas , Humanos , Tempo de Internação , Metástase Linfática/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Prospectivos , Reprodutibilidade dos Testes
10.
J Endourol ; 19(10): 1180-4, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16359210

RESUMO

BACKGROUND AND PURPOSE: Laparoscopic urologic surgery is not widely practiced in South Africa. After presenting a laparoscopic training course, we evaluated how effectively this training translated into clinical practice. SUBJECTS AND METHODS: Invitations to the course were sent to all South African urologists. Ten applicants attended the course, which consisted of dry and in-vivo animal surgery. Two questionnaires were sent out after the course. Questionnaire 1 (at course completion) aimed at identifying the precourse laparoscopic experience and expectations of the trainee. Questionnaire 2 (6 months postcourse) assessed how much laparoscopic surgery the participant had performed since the course. RESULTS: Seventeen percent of all South African urologists responded to the invitation. Prior to the course, 40% of trainees had performed >or=10 laparoscopic cases, 30% had performed <10 cases, and 30% had never performed laparoscopy, whereas 60% expected to be doing one or two cases a month after completing the course. Six months after the course, 60% had performed no laparoscopic cases. Of the three trainees who had never before done laparoscopic procedures, none had started to perform procedures since the course. The commonest procedures performed were varicocelectomy and diagnostic laparoscopy for nonpalpable testis. CONCLUSIONS: A hands-on laparoscopic training course to introduce laparoscopic urology into South African private urology practice has not translated into a satisfactory number of clinical cases being performed. The causes are likely multifactorial but are greatly influenced by social and economic forces. One possible solution may be to offer a mentor-based training program.


Assuntos
Educação Médica Continuada/métodos , Procedimentos Cirúrgicos Urológicos/educação , Urologia/educação , Competência Clínica , Humanos , Laparoscopia , Padrões de Prática Médica , África do Sul , Inquéritos e Questionários
11.
Urology ; 83(1): 220-4, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24231222

RESUMO

OBJECTIVE: To evaluate the correlation between the visual prostate symptom score (VPSS) and the international prostate symptom score (IPSS) and uroflowmetry parameters in men with urethral stricture disease. The VPSS offers a nonverbal, pictographic assessment of lower urinary tract symptoms. METHODS: A total of 100 men followed up with a diagnosis of urethral stricture were evaluated from March 2011 to November 2012 with IPSS, VPSS, uroflowmetry, urethral calibration, and urethrography. Follow-up every 3 months for 3-18 months was available in 78 men for a total of 289 visits. Procedures performed were urethral dilation in 105, internal urethrotomy in 54, and urethroplasty in 8 patients. Statistical analysis was performed with Spearman's rank correlation, Fisher's exact, and Student t tests. RESULTS: The time taken to complete the VPSS vs IPSS was significantly shorter (118 vs 215 seconds at the first and 80 vs 156 seconds at follow-up visits; P <.001). There were significant correlations between the VPSS and IPSS (r = 0.845; P <.001), maximum urinary flow rate (Qmax; r = 0.681; P <.001) and urethral diameter (r = -0.552; P <.001). A combination of VPSS >8 and Qmax <15 mL/s had positive and negative predictive values of 87% and 89%, respectively, for the presence of urethral stricture. CONCLUSION: The VPSS correlates significantly with the IPSS, Qmax, and urethral diameter in men with urethral stricture disease and takes significantly less time to complete. A combination of VPSS >8 and Qmax <15 mL/s can be used to avoid further invasive evaluation during follow-up in men with urethral strictures.


Assuntos
Sintomas do Trato Urinário Inferior/diagnóstico , Avaliação de Sintomas/métodos , Estreitamento Uretral/diagnóstico , Urodinâmica , Adulto , Idoso , Idoso de 80 Anos ou mais , Seguimentos , Humanos , Sintomas do Trato Urinário Inferior/etiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Estreitamento Uretral/complicações , Adulto Jovem
12.
S Afr Med J ; 104(5): 353-7, 2014 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-25212203

RESUMO

BACKGROUND: A visual prostate symptom score (VPSS) using pictograms was developed to assess the force of the urinary stream, urinary frequency, nocturia and quality of life (QoL). OBJECTIVE: To compare the VPSS with the international prostate symptom score (IPSS) and maximum (Qmax) and average (Qave) urinary flow rates in men from diverse language groups with limited schooling. METHODS: Men with lower urinary tract symptoms admitted to the urology ward at Windhoek Central Hospital, Namibia, were evaluated. Patients who were unable to complete the questionnaires alone were assisted by a doctor or nurse. Local ethics committee approval was obtained. Statistical analysis was performed using Student's t-test and Spearman's rank correlation test. RESULTS: One hundred men (mean age 56.3 years, range 20.1 - 95.4) were evaluated over a period of one year. All the men understood one or more of 15 languages, and 30 were illiterate; 32 had <5 years of schooling, 34 had 5 - 9 years and 34 had >9 years. The VPSS took significantly less time to complete than the IPSS. There were statistically significant correlations between the total VPSS and IPSS scores, between the four VPSS questions and the corresponding IPSS questions, and between Qmax and Qave and the VPSS total and VPSS questions on the force of the urinary stream and QoL. CONCLUSION: The VPSS pictograms depicting the force of the urinary stream and QoL correlated significantly with Qmax and Qave, indicating that they can be used as single-item questions to rapidly assess bladder outflow obstruction in men with limited education.


Assuntos
Doenças Prostáticas/diagnóstico , Doenças Prostáticas/fisiopatologia , Avaliação de Sintomas/métodos , Micção/fisiologia , Escala Visual Analógica , Adulto , Idoso , Idoso de 80 Anos ou mais , Escolaridade , Humanos , Internacionalidade , Idioma , Masculino , Pessoa de Meia-Idade , Namíbia , Qualidade de Vida , Adulto Jovem
13.
Nat Rev Urol ; 10(12): 713-22, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24166342

RESUMO

The use of highly active antiretroviral therapy (HAART) in HIV-infected people has led to a dramatic decrease in the incidence of opportunistic infections and virus-related malignancies such as non-Hodgkin lymphoma and Kaposi sarcoma, but not cervical or anal cancer. Advanced-stage cervical cancer is associated with a high incidence of urological complications such as hydronephrosis, renal failure, and vesicovaginal fistula. Adult male circumcison can significantly reduce the risk of male HIV acquisition. Although HAART does not completely eradicate HIV, compliance with medication increases life expectancy. HIV infection or treatment can result in renal failure, which can be managed with dialysis and transplantation (as for HIV-negative patients). Although treatment for erectile dysfunction--including phosphodiesterase 5 inhibitors, intracavernosal injection therapy, and penile prosthesis--can increase the risk of HIV transmission, treatment decisions for men with erectile dysfunction should not be determined by HIV status. The challenges faced when administering chemotherapy to HIV-infected patients with cancer include late presentation, immunodeficiency, drug interactions, and adverse effects associated with compounded medications. Nonetheless, HIV-infected patients should receive the same cancer treatment as HIV-negative patients. The urologist is increasingly likely to encounter HIV-positive patients who present with the same urological problems as the general population, because HAART confers a prolonged life expectancy. Performing surgery in an HIV-infected individual raises safety issues for both the patient (if severely immunocompromised) and the surgeon, but the risk of HIV transmission from patients on fully suppressive HAART is small.


Assuntos
Síndrome da Imunodeficiência Adquirida/complicações , Infecções por HIV/complicações , HIV , Doenças Urológicas , Saúde Global , Humanos , Incidência , Doenças Urológicas/epidemiologia , Doenças Urológicas/etiologia , Doenças Urológicas/prevenção & controle
14.
Prostate Cancer ; 2013: 560857, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23476788

RESUMO

Prostate cancer (CaP) is the leading cancer among men of African descent in the USA, Caribbean, and Sub-Saharan Africa (SSA). The estimated number of CaP deaths in SSA during 2008 was more than five times that among African Americans and is expected to double in Africa by 2030. We summarize publicly available CaP data and collected data from the men of African descent and Carcinoma of the Prostate (MADCaP) Consortium and the African Caribbean Cancer Consortium (AC3) to evaluate CaP incidence and mortality in men of African descent worldwide. CaP incidence and mortality are highest in men of African descent in the USA and the Caribbean. Tumor stage and grade were highest in SSA. We report a higher proportion of T1 stage prostate tumors in countries with greater percent gross domestic product spent on health care and physicians per 100,000 persons. We also observed that regions with a higher proportion of advanced tumors reported lower mortality rates. This finding suggests that CaP is underdiagnosed and/or underreported in SSA men. Nonetheless, CaP incidence and mortality represent a significant public health problem in men of African descent around the world.

15.
Urology ; 79(1): 215-8, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21741683

RESUMO

Inflammatory myofibroblastic tumor (IMT) is a rare neoplasm with unknown malignant potential that has been described in most organ systems. We present the case of a 3-year-old boy who was referred with lower urinary tract symptoms and macroscopic hematuria. An IMT was suspected after clinical, radiological, and surgical work-up, and the diagnosis was confirmed after a partial cystectomy was performed. A bladder-preserving approach is the treatment of choice, but close clinical follow-up is recommended because of the unknown biological behavior of these tumors.


Assuntos
Cistectomia/métodos , Granuloma de Células Plasmáticas/diagnóstico , Granuloma de Células Plasmáticas/cirurgia , Neoplasias da Bexiga Urinária/diagnóstico , Neoplasias da Bexiga Urinária/cirurgia , Pré-Escolar , Endoscopia/métodos , Seguimentos , Granuloma de Células Plasmáticas/complicações , Hematúria/diagnóstico , Hematúria/etiologia , Humanos , Sintomas do Trato Urinário Inferior/diagnóstico , Sintomas do Trato Urinário Inferior/etiologia , Imageamento por Ressonância Magnética/métodos , Masculino , Doenças Raras , Medição de Risco , Resultado do Tratamento , Neoplasias da Bexiga Urinária/complicações
16.
Front Biosci (Elite Ed) ; 4(8): 2709-22, 2012 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-22652680

RESUMO

There is a considerable discrepancy between the number of identified occupational-related bladder cancer cases and the estimated numbers particularly in emerging nations or less developed countries where suitable approaches are less or even not known. Thus, within a project of the World Health Organisation Collaborating Centres in Occupational Health, a questionnaire of the Dortmund group, applied in different studies, was translated into more than 30 languages (Afrikaans, Arabic, Bengali, Chinese, Czech, Dutch, English, Finnish, French, Georgian, German, Greek, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Kazakh, Kirghiz, Korean, Latvian, Malay, Persian (Farsi), Polish, Portuguese, Portuguese/Brazilian, Romanian, Russian, Serbo-Croatian, Slovak, Spanish, Spanish/Mexican, Tamil, Telugu, Thai, Turkish, Urdu, Vietnamese). The bipartite questionnaire asks for relevant medical information in the physician's part and for the occupational history since leaving school in the patient's part. Furthermore, this questionnaire is asking for intensity and frequency of certain occupational and non-occupational risk factors. The literature regarding occupations like painter, hairdresser or miner and exposures like carcinogenic aromatic amines, azo dyes, or combustion products is highlighted. The questionnaire is available on www.ifado.de/BladderCancerDoc.


Assuntos
Neoplasias da Bexiga Urinária/etiologia , Documentação , Humanos , Linguística , Exposição Ocupacional , Inquéritos e Questionários , Neoplasias da Bexiga Urinária/patologia
18.
Urology ; 78(1): 17-20, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21550646

RESUMO

OBJECTIVE: To evaluate the correlation between the International Prostate Symptom Score (IPSS) and a new Visual Prostate Symptom Score (VPSS) using pictures rather than words to assess lower urinary tract symptoms (LUTS). METHODS: Four IPSS questions related to frequency, nocturia, weak stream, and quality of life (QoL) were represented by pictograms in the VPSS. Men with LUTS were given the IPSS and VPSS to complete. Peak (Qmax.) and average (Qave.) urinary flow rates were measured. Statistical analysis was performed using Student's t, Fisher's exact, and Spearman's correlation tests. RESULTS: The educational level of the 96 men (mean age 64, range 33-85 years) evaluated August 2009 to August 2010 was school grade 8-12 (62%), grade 1-7 (28%), university education (6%), and no schooling (4%). The IPSS was completed without assistance by 51 of 96 men (53%) and the VPSS by 79 of 96 men (82%) (P<.001). Comparing education grade<7 vs grade>10 groups, the IPSS required assistance in 27 of 31 men (87%) vs 9 of 38 men (24%) (P<.001), and the VPSS required assistance in 10 of 31 men (32%) vs 3 of 38 men (8%) (P=.014). There were statistically significant correlations between total VPSS, Qmax. and Qave., total VPSS and IPSS, and individual VPSS parameters (frequency, nocturia, weak stream and QoL) vs their IPSS counterparts. CONCLUSIONS: The VPSS correlates significantly with the IPSS, Qmax. and Qave., and can be completed without assistance by a greater proportion of men with limited education, indicating that it may be more useful than the IPSS in patients who are illiterate or have limited education.


Assuntos
Prostatismo/diagnóstico , Inquéritos e Questionários , Transtornos Urinários/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Técnicas de Diagnóstico Urológico , Humanos , Internacionalidade , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida
19.
Nat Rev Urol ; 7(4): 206-14, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20212517

RESUMO

Acute radiation cystitis occurs during or soon after radiation treatment. It is usually self-limiting, and is generally managed conservatively. Late radiation cystitis, on the other hand, can develop from 6 months to 20 years after radiation therapy. The main presenting symptom is hematuria, which may vary from mild to severe, life-threatening hemorrhage. Initial management includes intravenous fluid replacement, blood transfusion if indicated and transurethral catheterization with bladder washout and irrigation. Oral or parenteral agents that can be used to control hematuria include conjugated estrogens, pentosan polysulfate or WF10. Cystoscopy with laser fulguration or electrocoagulation of bleeding points is sometimes effective. Injection of botulinum toxin A in the bladder wall may relieve irritative bladder symptoms. Intravesical instillation of aluminum, placental extract, prostaglandins or formalin can also be effective. More-aggressive treatment options include selective embolization or ligation of the internal iliac arteries. Surgical options include urinary diversion by percutaneous nephrostomy or intestinal conduit, with or without cystectomy. Hyperbaric oxygen therapy (HBOT) involves the administration of 100% oxygen at higher than atmospheric pressure. The reported success rate of HBOT for radiation cystitis varies from 60% to 92%. An important multicenter, double-blind, randomized, sham-controlled trial to evaluate the effectiveness of HBOT for refractory radiation cystitis is currently being conducted.


Assuntos
Cistite/diagnóstico , Cistite/terapia , Lesões por Radiação/diagnóstico , Lesões por Radiação/terapia , Animais , Antineoplásicos/uso terapêutico , Ensaios Clínicos como Assunto/métodos , Gerenciamento Clínico , Humanos , Oxigenoterapia Hiperbárica/métodos
20.
Urology ; 76(2 Suppl 1): S15-23, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20691881

RESUMO

A comprehensive literature study was conducted to evaluate the levels of evidence (LEs) in publications on the diagnosis and staging of penile cancer. Recommendations from the available evidence were formulated and discussed by the full panel of the International Consultation on Penile Cancer in November 2008. The final grades of recommendation (GRs) were assigned according to the LEs of the relevant publications. The following consensus recommendations were accepted: physical examination of the primary penile lesion is mandatory, evaluating the morphologic and physical characteristics of the lesion (GR A). Evaluation of the primary lesion with ultrasonography is of limited value for local tumor staging (GR C); however, evaluation of the primary tumor with magnetic resonance (MRI) imaging during artificial erection induced by intracavernosal injection of prostaglandin might be more useful (GR B). Histologic or cytologic diagnosis of the primary lesion is mandatory (GR A). For accurate histologic grading and staging, a resected specimen is preferable to a biopsy specimen alone (GR B). Penile cancer should be staged according to the TNM system; however, the 1987/2002 TNM staging system requires revision using data from larger patient cohorts to validate the recently proposed modifications (GR B). The histopathology report should provide information on all prognostic parameters, including the tumor size, histologic type, grade, growth pattern, depth of invasion, tumor thickness, resection margins, and lymphovascular and perineural invasion (GR B). Physical examination of the inguinal and pelvic areas to assess the lymph nodes is mandatory (GR B). Ultrasound-guided fine needle aspiration cytology is indicated for both palpable and nonpalpable inguinal nodes. If the findings confirm lymph node metastasis (LNM), complete inguinal lymph node dissection is indicated (GR B). In patients with nonpalpable inguinal nodes, if the ultrasound-guided fine needle aspiration cytology findings are negative for tumor, dynamic sentinel node biopsy can be performed if the equipment and technical expertise are available (GR C). In patients at high risk of inguinal LNM according to the available guidelines and nomograms, surgical staging can be performed by complete, bilateral inguinal lymph node dissection, which might also be curative (GR B). In patients at intermediate risk of LNM, sentinel node biopsy or modified (limited) inguinal lymph node dissection might be performed (GR B). In patients with nonpalpable inguinal nodes, imaging with computed tomography (CT) or MRI is not indicated, because they are not useful in detecting small-volume LNM. Also, it is very unlikely that large-volume LNM (detectable by CT/MRI) would be present in the pelvic nodes (GR B). In patients with confirmed inguinal LNM, CT of the pelvis is indicated to detect iliac LNMs (GR B). Abdominal CT and chest radiography are advisable if the pelvic CT findings are positive (GR B).


Assuntos
Neoplasias Penianas/diagnóstico , Humanos , Metástase Linfática , Masculino , Estadiamento de Neoplasias , Neoplasias Penianas/patologia , Biópsia de Linfonodo Sentinela
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